Benzenesulfonamide, 3-amino- → HCID 178467268, compound

HRID 2398716Notes

Reaction equation

HRID 2398716 reaction equation
[C:1]([C:4]1[C:5](=[O:15])[O:6][C:7]([OH:14])=[C:8]([C:11](=[O:13])[CH3:12])[C:9]=1[OH:10])(=O)[CH3:2].[S:16]([C:20]1[CH:21]=[C:22]([CH:24]=[CH:25][CH:26]=1)[NH2:23])(=[O:19])(=[O:18])[NH2:17]>CO>[C:11]([C:8]1[C:7](=[O:14])[O:6][C:5](=[O:15])[C:4](=[C:1]([NH:23][C:22]2[CH:24]=[CH:25][CH:26]=[C:20]([S:16](=[O:19])(=[O:18])[NH2:17])[CH:21]=2)[CH3:2])[C:9]=1[OH:10])(=[O:13])[CH3:12]

Participants

4

Reactant 2

HCID 7377Benzenesulfonamide, 3-amino-HCID 1354659693,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one

Product 1

HCID 178467268HCID 178467268, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a hot solution of 2.12 g. (0.01 mol) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 40 ml. of methanol is added 1.72 g. (0.01 mol) of m-sulfamylaniline and the mixture is refluxed for one hour. The solid is filtered from the reaction mixture to obtain 5-acetyl-4-hydroxy-3-[1-(3-sulfamylphenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 237° C.

Workup

  1. filtrationThe solid is filtered from the reaction mixture

Sources & evidence

ORD record
ord-72bbf76f3b0644eb9cbfb30b16c85a1c
Source dataset
uspto-grants-1977_05
Patent number
US04025614

Reaction notes

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